problems with GTR2 since Win 8.1 came along to me

Hey folks, I'm really hoping someone knows the answers to these 2 new problems I've been having since I got my new laptop that has Win 8.1 on it. The 2 problems I now have are 1, that the XD stops working every time I go back to the garage to make an adjustment or if I leave the track and reload whichever track and the 2nd problem is with my G27. It works just fine upon an initial starting of the game but more often than not it won't work if I leave the track and reload again. Having said that, I have seen whereby it may not work upon reloading the track after one instance but will work again on the following reload. It's driving me crazy! Both problems are! Reverting to Win 7 isn't an option much as I'd like to as I don't have any way of doing so...not as though I upgraded from 7 unfortunately Any assistance would be greatly appreciated please!

1. Go to start menu > My Computer > Properties.2. On the left click Advanced System Settings.3. You will now see a System Properties window automatically opened to the Advanced Tab, Just click the Environment Variables button located at the bottom.4. Under User Variables click New5. Create a Variable name called devmgr_show_nonpresent_devices With a Variable Valve of 1. Click OK when Done.6. You will now see this entry appear under your User Variables at the top, Once you confirm it has been entered correctly just click OK on the Environment Variables Window then again on the System Properties Window.7. Open your Start-Menu again and right-click Computer and open Manage8. Select Device Manager found on the left, then at the top click View > Show Hidden Devices.

From here, you can now expand either Human Interface Devices, Universal Serial Bus controllers, or Unknown Devices. You will see both full contrast images (currently plugged in devices) and faded images (built enumeration profiles not in active use). I'd remove Logitech entries for any wheels you have plugged in (right click-uninstall OR just delete them), unplug the wheel, then replug in to a different port. If you get unknown devices, you can determine if it's a Logi product if the Hardware ID (Under Details and pulldown menu if you doubleclick a device) has a "046d" string in the VID_PID area.

When you unplug/replug the wheel after doing this, it will force windows to create a whole new driver profile for the USB enumeration that just occured, which can and will resolve many of the issues listed in here. It may also resolve the off-center calibration according to the software, as the calibration in this device is determined by Windows and DirectInput. If the product goes to dead center after doing it's spinning dance, then the hardware is calibrated. It's possible that even after calibration, the Windows has incorrect calibration data within DirectInput. To clear this out, repeat the above steps BUT don't unplug/replug the wheel, go to the Logi download page for either the G25 or G27, download the Clear Calibration utility, run that, then NOW unplug and replug the wheel. Clear Calibration will remove additional information that Windows stores as it's own calibration in DirectInput.

also check logitech power options from device manager Open Device Manager (Start > Control Panel > System and Security > System > Device Manager). Expand 'Human Interface Device' and Look for Logitech HID-compliant Game Controller. Right click and select 'power options' take all options off and from system power handling selective usb off

Go to the Logitech website and download the latest drivers for G27. These sould come as a *.exe file. (currently lgs510 someting)

Instead of running it, extract it empty folder using a program such as 7zip.

Unplug your wheel, then open the Device Manager.In the device manager, open the "User interface devices" and right-click/uninstall the Logitech Driving Force lines if any, and right click/update the "Logitech Virtual HID..." lines.

To update select the "file on my computer" stuff, and browse to your extracted folder until you find a "WMDrivers" folder in which you should select one of the *exe files (can't remember which one exactly).

After it's done (for every "virtual HID" line), I guess plugging my wheel back made it appear as G27 in Windows. Then everything worked fine, calibration and in games.

Just put my G27 back up a few days ago(after a year!, moved, etc)..., seems to be working fine, though I think Win7 loses it after a full power cycle, only happens since using uhd tv. If things seems a bit wacky afeter a bit, will try your helpful insights....Thank You ville33!!!!

Last edited by joeschmoe on Fri 10 Jul 2015, 10:06 am; edited 2 times in total (Reason for editing : dunno, forgot......)